Answer:
The answer is 5.
Step-by-step explanation:
Total number of people noticed by author = 28
Total number of black haired people = 27
So, total number of non black haired people = 1
Also given that 6 people had whole row of seats to themselves.
Let x be the number of non black haired people who had a whole row to themselves.
Since there is only one person with non black hair and has a whole row to himself because it is mentioned that one person had a row to himself which is non black haired.
Looking at above information we can say that x = 1.
Now we can say that the number of black haired people who had a whole row to themselves = 6-x
or 
Hence, the answer is 5.
A. 4x-4
We want the expressions to be equal, and:
4(4x-4)= 16x-16
So, A is the answer
Answer:
The length of the rectangle is 
and width is 
.
Step-by-step explanation:
The area of the green zone is 
and the area of the purple zone is 
.
So, the total shaded zone is a rectangle having area = 
.
Now, factorizing the area expression we get, area = 
.
Therefore, we can say the length of the rectangle is and width is . (Answer)
Answer: 71 degrees.
Step-by-step explanation:
Due to the triangle being isosceles (Two sides are equal), we can assume that the angles will also be equal.
You can take 180 (The total of a triangle) and subtract by the known degree
180 - 38 = 142
Now we divide 142 by two, ONLY because this is case; both angles will be the same degree.
142 / 2 = 71
Therefore; x = 71
